A new strain of Arthrinium phaeospermum isolated from Carex kobomugi Ohwi is capable of gibberellin production.
Plant growth-promoting endophytic fungi with gibberellin-producing ability were isolated from the roots of Carex kobomugi Ohwi, a common sand-dune plant, and bioassayed for plant growth-promotion. A new strain, Arthrinium phaeospermum KACC43901, promoted growth of waito-c rice and Atriplex gemelinii. Analysis of its culture filtrate showed the presence of bioactive GA(1) (0.5 ng/ml), GA(3) (8.8 ng/ml), GA(4) (4.7 ng/ml) and GA(7) (2.2 ng/ml) along with physiologically inactive GA(5) (0.4 ng/ml), GA(9) (0.6 ng/ml), GA(12) (0.4 ng/ml), GA(15) (0.4 ng/ml), GA(19) (0.9 ng/ml) and GA(24) (1.8 ng/ml). The fungal isolate was identified through sequence homology and phylogenetic analysis of 18S rDNA (internal transcribed region).
Khan
Sumera Afzal
SA
Department of Life Science and Biotechnology, Kyungpook National University, Daegu, South Korea.
Hamayun
Muhammad
M
Kim
Ho-youn
HY
Yoon
Hyeok-jun
HJ
Seo
Jong-cheol
JC
Choo
Yeon-sik
YS
Lee
In-jung
IJ
Kim
Sang-dal
SD
Rhee
In-koo
IK
Kim
Jong-guk
JG
D001203:Ascomycota / Q000145:classification / Q000302:isolation & purification / Q000502:physiology*; D027466:Atriplex / Q000254:growth & development* / Q000382:microbiology*; D031255:Carex Plant / Q000382:microbiology*; D005875:Gibberellins / Q000096:biosynthesis*; D012275:Oryza / Q000254:growth & development* / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology; D013045:Species Specificity
D005875:Gibberellins